Home / 2,319.09-3,478.79-932.42

Finding the Fourth Proportional to 2,319.09, 3,478.79 and 932.42

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Solution

The fourth proportional to 2,319.09, 3,478.79 and 932.42 is: 1,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.09 : 3,478.79 = 932.42 : x
  2. Step 2: Convert to fraction form
    2,319.09/3,478.79 = 932.42/x
  3. Step 3: Cross multiply
    2,319.09x = 3,478.79 × 932.42
  4. Step 4: Simplify right side
    2,319.09x = 3,243,700.90
  5. Step 5: Solve for x
    x = 3,243,700.90/2,319.09
  6. Step 6: Final answer
    x = 1,398.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.